Exterior surface of cookware



FIG. 1 is a plan view in accordance with an exterior surface of cookware;

FIG. 2 is a side view of the design of FIG. 1 ;

FIG. 3 is a perspective view of the design of FIG. 1 ; and,

FIG. 4 is a perspective view of the design of FIG. 1 .

The broken lines form no part of the claimed design. 

CLAIM The ornamental design for an exterior surface of cookware, as shown and described. 